@inproceedings{65cef062a0914b43a6eb31d86e51d67c,
title = "Wireless Communication Tradeoffs in Distributed Control",
abstract = "We present a framework to study control systems with feedback loops closed over wireless communication links. We show the choice of communication parameters can greatly affect the performance of such systems. The trade-offs of data rate, time delay and packet loss in the communication link layer design are illustrated with a numerical example of an inverted pendulum. Packet loss is shown to signi£cantly degrade performance, which is not surprising since the controller design does not take into account random packet losses in the feedback loop. We thus propose an analog soft-decoding communication link design that does not incur any packet losses. It is shown that, for low channel gains, the control system closed over a soft-decoding communication link performs better than the same system closed over a hard-decoding communication link with optimal selection of sample period and data rate. This suggests fundamental changes in wireless link designs may be necessary to support robust distributed control systems.",
author = "Xiangheng Lieu and Andrea Goldsmith",
year = "2003",
doi = "10.1109/CDC.2003.1272644",
language = "English (US)",
isbn = "0780379241",
series = "Proceedings of the IEEE Conference on Decision and Control",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "688--694",
booktitle = "Proceedings of the IEEE Conference on Decision and Control",
address = "United States",
note = "42nd IEEE Conference on Decision and Control ; Conference date: 09-12-2003 Through 12-12-2003",
}